| Source: Souvenir Program of the 50th Anniversary of the St. Louis Photo-Engravers' Union No. 10, 1898-1948 Location: Labor Collection, Box 1, Archives | |
 | |
| Corporate Name: | Whitaker-Ruehl Engraving Co. |
| Building Illustration: | yes |
| Advertisement: | yes |
| Page: | 11 |
